The whole point of the Mac is macOS, otherwise there is no point, in my opinion. Windows can't do what I do on the Mac or run the apps I need and use, so it isn't even on the table as an option for me.
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I guess I don't see anything that calls for a platform switching situation compared to the past. I've been through worse pains staying with Apple in the past than anything today (Mac Pro issues above and all).
I agree that macOS is the reason for owning a mac. That's why I switched to mac from PCs. Personally, I very much prefer macOS now. And in extension, the whole Apple eco-system 🥰
Even if I really wish Apple would offer at least drivers for newer generation graphic cards. It is not a dealbreaker to me.
I love my iMac Pro, and the Mac Pro 7.1.
I have just upgrade one 7.1. From 16 to 24 core CPU. From 2TB to 8TB SSD. Replaced the original 96GB with 192GB RAM (swapped with the other machine). And I even replaced the 580X card with a W6800X Duo.
Having upgraded everything, I am amazed
how extremely well Apple built this machine. A joy to work on, compared to a PC. (macOS installation aside). With no issue like cable management, or cooling solution.
Installing Windows with Boot Camp is also easy, and opens up other graphic card options (if needed).